A new pulse laser technology based on coherently phased-wavelength multiplexed (CPWM) principle has been proposed, simulation has been done to analyze the effect of each parameters to the characteristic of the pulse laser. Base on the coherent combining of the multi-wavelength laser, several CW laser’s those hold the same frequency interval are coherently combined, by effective phase control of each laser, pulse laser with adjustable parameter such as intensity, pulse width, pulse repetition rate can be generated. In theory, the combined pulse laser holds the same characteristic as the mode-locked laser, and the repetition rate is equal to the frequency interval. Apply a certain phase control to each laser; an anticipant pulse laser can be generated. As the development of the out-cavity phase controlling technology, this method can be an effective way to generate pulse laser with multi-parameter adjustable from a CW laser.